MSI PRO B860-P WIFILGA 1851 · DDR5 · ATX · MSI global specification- M.2 storage positions
- 3This one: 4
MOTHERBOARDS
ASUS ROG STRIX B860-A GAMING WIFI
LGA1851 · ATX · ASUS part 90MB1JI0-M0AAY0
- CPU socket
- LGA1851
- Chipset
- Intel B860
- Form factor
- ATX: 305 × 244 mm
An ATX LGA1851 motherboard with 4 DDR5 memory slots, 4 M.2 storage positions and Wi-Fi 7 alongside wired Ethernet.
Prices & buying options
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THE ACTUAL PRODUCT
Compare with MSI PRO B860-P WIFI
Specifications checked 10 Sept 2026Manufacturer specifications, not a hands-on test.
The nearest checked motherboards by key specifications, with what differs from the ASUS ROG STRIX B860-A GAMING WIFI. The first matches the Compare button above.
MSI PRO B860-P WIFILGA 1851 · DDR5 · ATX · MSI global specification
MSI MAG B860 TOMAHAWK WIFILGA 1851 · DDR5 · ATX · MSI global specification- M.2 storage positions
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ASUS TUF GAMING B860-PLUS WIFITUF GAMING B860-PLUS WIFI · LGA1851 · ATX · ASUS global specification- M.2 storage positions
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Key strengths
4 M.2 storage positions and 4 SATA connectors provide several drive-connection options.
1 × Intel 2.5Gb Ethernet and Wi-Fi 7 offer both wired and wireless network connections.
Before you buy
M.2_4 and PCIEX16(G4) share lanes; using the expansion slot disables M.2_4. The first M.2 position supports PCIe 5.0 x4 and the other three use PCIe 4.0 x4.
Check the exact processor, BIOS and memory kit before purchase. The 256 GB ceiling and listed overclocking profiles are configuration limits, not a tested build guarantee.
Works with
Products in this catalogue that list the same socket or memory type as the ASUS ROG STRIX B860-A GAMING WIFI. A shared socket or memory type is necessary but not sufficient: check the exact CPU and memory support lists, and the BIOS version, before buying.
Start a build with thisOpens My setups with the ASUS ROG STRIX B860-A GAMING WIFI in place and checks each part you addEvery specification. With its source.
Full specifications
Exact configuration: 90MB1JI0-M0AAY0 · LGA1851 · ATX · ASUS global specification
25 specifications in 9 groups. Values are manufacturer specifications unless a row says “Measured result” or “Calculated from cited specifications”.
Platform & board
4 items
- CPU socket
- LGA1851Source
- Chipset
- Intel B860Source
- Form factor
- ATX: 305 × 244 mm
Check case mounting positions and connector clearance.
Source - Specification market
- ASUS global documentation
UK and US buying links are searches, not proof of stock, identical regional wireless modules, bundles or warranty. Confirm the exact model and part identifier with the retailer.
Source
Memory
4 items
- DIMM slots
- 4
Physical DDR5 module positions; this count is not a guarantee of capacity or profile speed.
Source - Maximum listed memory
- 256 GB
Manufacturer capacity ceiling; check CPU support, BIOS and the validated DIMM population.
Source - Memory type, slots and limit
- 4 DDR5 DIMM slots; up to 256 GB; dual channel; Intel XMP
Supported capacity, module population and profile speeds depend on the exact CPU, installed BIOS and validated memory kit. Profile support does not guarantee an overclock.
Source - Listed memory overclocking profiles
- Not provided
Conflicting manufacturer claims: the technical specification lists up to 8600+ MT/s (OC), while the product page lists 9066+ MT/s (OC). No single ceiling is confirmed here; check the exact CPU, BIOS and supported memory list.
Expansion slots
1 item
- PCIe expansion configuration
- Intel Core Ultra Processors (Series 2) 1 × PCIe 5.0 × 16 slot Intel B860 Chipset 1 × PCIe 4.0 × 16 slot (supports x4 mode) M.2_4 slot shares bandwidth with PCIEX16(G4). When PCIEX16(G4) slot is operating, M.2_4 will be disabled. - To ensure compatibility of the device installed, please refer to https://www.asus.com/support/download-center/ for the list of supported peripherals.
M.2_4 and PCIEX16(G4) share lanes; using the expansion slot disables M.2_4. The first M.2 position supports PCIe 5.0 x4 and the other three use PCIe 4.0 x4.
Source
Storage
3 items
- M.2 storage positions
- 4
M.2_4 and PCIEX16(G4) share lanes; using the expansion slot disables M.2_4. The first M.2 position supports PCIe 5.0 x4 and the other three use PCIe 4.0 x4.
Source - SATA storage ports
- 4
SATA 6 Gb/s; check the source for lane sharing and drive power requirements.
Source - Storage interfaces
- 4 M.2 storage positions; 4 SATA 6 Gb/s ports
M.2_4 and PCIEX16(G4) share lanes; using the expansion slot disables M.2_4. The first M.2 position supports PCIe 5.0 x4 and the other three use PCIe 4.0 x4.
Source
USB & rear connections
3 items
- Rear connections
- 1 × USB4 (20Gbps) port (1 × USB Type-C ) 3 × USB 10Gbps ports (2 × Type-A + 1 × USB Type-C ) 2 × USB 5Gbps ports (2 × Type-A) 4 × USB 2.0 ports (4 × Type-A) 1 × DisplayPort 1 × HDMI port 1 × Wi-Fi module 1 × Intel 2.5Gb Ethernet port 2 × Audio jacks 1 × Optical S/PDIF out port 1 × BIOS FlashBack button 1 × Clear CMOS button
Connector count and listed modes describe the rear panel. USB-C display and charging capability depends on the specific port; display output also depends on the CPU and source configuration.
Source - Internal USB connections
- Front USB (Total 5 ports) 1 × USB 10Gbps connector (supports USB Type-C ) 1 × USB 5Gbps header supports 2 additional USB 5Gbps ports 1 × USB 2.0 header supports 2 additional USB 2.0 ports USB Type-C power delivery output: max. 5V/3A
Headers need compatible case ports or accessories; they are not additional rear sockets. Follow the stated power and cable requirements.
Source - Integrated-graphics display connections
- 1 × DisplayPort 1 × HDMI port 1 × USB4 (20Gbps) ports support USB Type-C display outputs Graphics specifications may vary between CPU types. Please refer to www.intel.com for any updates. Supports max. 8K@30Hz as specified in DisplayPort 1.4. Supports 4K@60Hz as specified in HDMI 2.1. Supports max. 4K@60Hz as specified in DisplayPort 1.4a. In USB4 mode, supports up to 4K@60Hz, maximum total bandwidth up to 23.8Gbps, for resolution support please check DisplayPort 1.4 specs. In DP alt mode, supports up to UHBR10. VGA resolution support depends on processors' or graphic cards' resolution. While installing the operating system, please ensure that your monitor is connected to the HDMI port on the back I/O panel or to a discrete graphics card.
These are manufacturer-listed configurations, not measured display performance. A compatible processor with graphics, suitable cable and supported display mode are required.
Source
Networking
4 items
- Network interfaces
- 1 × Intel 2.5Gb Ethernet; Wi-Fi 7 (160 MHz listed); Bluetooth 5.4 listed
Wireless bands and channel widths depend on local rules, the operating system and the installed module. Full Wi-Fi 7 features require Windows 11 24H2 or later where stated by ASUS; Bluetooth versions may vary by module.
Source - Wired Ethernet
- 1 × Intel 2.5Gb Ethernet
Link-rate capability; real throughput depends on the connected network, cabling and workload.
Source - Included Wi-Fi
- Yes
Wi-Fi 7; 160 MHz listed. Wireless bands and channel widths depend on local rules, the operating system and the installed module. Full Wi-Fi 7 features require Windows 11 24H2 or later where stated by ASUS; Bluetooth versions may vary by module.
Source - Listed Bluetooth version
- 5.4
The manufacturer notes that the Bluetooth version can depend on the installed wireless module.
Source
Audio
1 item
- Audio hardware
- ALC1220P codec; manufacturer-listed 7.1-channel configuration
Channel configuration and spatial-audio support depend on the connected outputs, chassis audio wiring and software. A codec name is not an independent sound-quality measurement.
Source
Power, cooling & lighting
1 item
- Motherboard power connections
- 1 × 24-pin Main Power connector 2 × 8-pin +12V CPU Power connector
Check the complete connector list and the PSU cable type. Additional graphics-card, front-panel fast-charge and cooling connections can have separate requirements.
Source
BIOS, software & diagnostics
4 items
- CPU support / BIOS source
- Intel Core Ultra desktop processors (Series 2). Verify the exact CPU and minimum BIOS using ASUS support before buying.
A shared socket and processor-family listing do not confirm that a particular BIOS revision supports every processor in that family.
Source - Firmware storage
- 256 Mb Flash ROM, UEFI AMI BIOS
Flash-ROM capacity does not identify the BIOS version installed on a retail board.
Source - Listed operating systems
- Windows 11 (22H2 & later)
Individual features and drivers can have newer operating-system requirements, particularly wireless networking.
Source - Rear BIOS FlashBack button
- Yes
Use the exact model firmware and follow ASUS instructions; a button does not establish the currently installed BIOS version.
Source
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